CVE-2022-43623: D-Link DIR-1935 SetWebFilterSetting WebFilterURLs Command Injection Remote Code Execution Vulnerability
First published: Wed Mar 29 2023(Updated: )
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of SetWebFilterSetting requests to the web management portal. When parsing the WebFilterURLs element, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-16140.
Credit: zdi-disclosures@trendmicro.com zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| D-Link DIR-1935 | ||
| D-link Dir-1935 Firmware | <=1.02 | |
| D-link Dir-1935 Firmware | =1.03-b1 | |
| D-link Dir-1935 Firmware | =1.03-b2 | |
| D-Link DIR-1935 | ||
| Dlink Dir-1935 Firmware | <=1.02 | |
| Dlink Dir-1935 Firmware | =1.03-b1 | |
| Dlink Dir-1935 Firmware | =1.03-b2 | |
| Dlink Dir-1935 |
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Reference Links
Frequently Asked Questions
What is CVE-2022-43623?
CVE-2022-43623 is a vulnerability that allows network-adjacent attackers to execute arbitrary code on affected D-Link DIR-1935 1.03 routers.
How severe is the CVE-2022-43623 vulnerability?
The severity of CVE-2022-43623 is medium, with a CVSS score of 6.8.
What software is affected by CVE-2022-43623?
The D-Link DIR-1935 routers with firmware versions up to and including 1.03-b2 are affected by CVE-2022-43623.
Is authentication required to exploit CVE-2022-43623?
Yes, authentication is required to exploit CVE-2022-43623, but the existing authentication mechanism can be bypassed.
How can CVE-2022-43623 be fixed?
To fix CVE-2022-43623, users should update their D-Link DIR-1935 routers to a firmware version that includes a patch for the vulnerability.
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